Courtney Southwick is a writer focusing on health, nutrition, and disease. She has been blogging for the past two years at CourtneySouthwick.com. She writes blogs and articles for online publications ...

Muscle twitches, often experienced as sudden, involuntary movements in the muscles, are common yet can raise concerns for some individuals. These small, rapid contractions, medically known as ...

Stiff person syndrome (SPS) causes you to have muscle stiffness and spasms, often triggered by sudden noises or touch. You can use medications like muscle relaxants and anticonvulsants to relieve ...

Medically reviewed by Mallory Christopherson, DC Key Takeaways Back spasms are involuntary muscle contractions. They can ...

Muscle cramps are the worst. Whether it's a side stitch during a run or a rogue "charley horse" that wakes you up at 3 in the morning, cramps can be incredibly painful and annoying. Cramps seem to ...